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From:   Felix Fietkau <nbd@nbd.name>
To:     linux-wireless@vger.kernel.org
Subject: [PATCH 13/15] mt76: mt7615: decrease rx ring size for MT7622
Date:   Thu, 30 Jan 2020 15:47:16 +0100
Message-Id: <20200130144718.14298-13-nbd@nbd.name>
In-Reply-To: <20200130144718.14298-1-nbd@nbd.name>
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Since it's 2.4 GHz only, it needs fewer buffers

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/mt7615/dma.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
index 41dea1aa58db..aeccb35e14f3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
@@ -188,6 +188,7 @@ static void mt7622_dma_sched_init(struct mt7615_dev *dev)
 
 int mt7615_dma_init(struct mt7615_dev *dev)
 {
+	int rx_ring_size = MT7615_RX_RING_SIZE;
 	int ret;
 
 	mt76_dma_attach(&dev->mt76);
@@ -236,9 +237,11 @@ int mt7615_dma_init(struct mt7615_dev *dev)
 	if (ret)
 		return ret;
 
+	if (!is_mt7615(&dev->mt76))
+	    rx_ring_size /= 2;
+
 	ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], 0,
-			       MT7615_RX_RING_SIZE, MT_RX_BUF_SIZE,
-			       MT_RX_RING_BASE);
+			       rx_ring_size, MT_RX_BUF_SIZE, MT_RX_RING_BASE);
 	if (ret)
 		return ret;
 
-- 
2.24.0